A dual-drive toggle mechanism and optimization method for mechanical presses

Abstract

The invention discloses a dual-drive toggle rod mechanism used for a mechanical press and an optimization method. The dual-drive toggle rod mechanism is divided into an upper toggle rod part and a lower toggle rod part. The upper toggle rod part is composed of a first crank, a first connecting rod, a second toggle rod and a unit body. The lower toggle rod part is composed of a second crank, a second connecting rod, a first toggle rod, a third toggle rod and a sliding block. Mechanism optimization is conducted on the upper toggle rod part with the stroke as the optimization target, and the driving torque is used as the optimization target of the lower toggle rod part. Through decoupling iterative optimization of the stroke and the driving torque of the upper toggle rod part and the lower toggle rod part, optimization of the dual-drive toggle rod mechanism is achieved, and the performance and adaptability of the press are improved accordingly; and the driving torque of the crank can be greatly reduced on the premise that the structure of the unit body and the stroke of the sliding block meet working requirements, and the capacity and cost of a servo motor are reduced accordingly. The dual-drive toggle rod mechanism used for the mechanical press is easy and convenient to use, reasonable in structure and practical.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to a double-drive toggle mechanism for a mechanical press and an optimization method. Background technique [0002] The mechanical press is one of the important mechanical equipment, and the mechanical press is mainly the toggle mechanical press. Because the toggle mechanical press has slow working stroke speed, large force ratio, long holding time of the slider at the bottom dead center, and good body rigidity, it is suitable for metal precision pressing or extrusion molding, and is widely used in machinery, Automotive, instrumentation and other industries. [0003] Due to the relatively fixed movement mode of the slider of the traditional toggle mechanical press, single function of the press, poor process adaptability, and high total energy consumption due to the continuous rotation of the flywheel driven by the motor, it is not suitable for the development of modern manufa...

AI Technical Summary

Problems solved by technology

[0005] However, the general double-drive toggle mechanism cannot give full play to the advantages of the above-mentioned working mechanism, and can only play a limited role in reducing the torque and instantaneous power of the driving motor and improving the working performance, which is not conducive to the use of the above-mentioned mechanism in the actual servo press. application

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